How can Apple improve their App Store for iPhone and iPod touch users?

We’ve already discussed Apple’s iTunes App Store’s “Customer Reviews” issues here, but what else does Apple need to do to improve their App Store experience for iPhone and iPod touch users?

App discovery, search capabilities, layout, user interface, categories, etc. – what needs help and what is Apple doing well?

What would you change, fix, add and/or remove to make the iTunes App Store – the desktop and/or the mobile version – better?